Pocket-knife



(NO Model.)

J. M. PALMER.

l .POCKET KNIFE.

No. 253,887. y Patented Peb. 21,1882.

FISQ. l r

' UNITED STATES PATENT OFFICE.

JAMES VM.- PALMER, OF CAMBRIDGE, MASSACHUSETTS.

POCKET-KNIFE.

SPECIFICATION forming part of Letters Patent No. 253,887, dated February21, 1882.

Application led October 25, 1880. (No model.)

To all .whom it may concern B e it known that I, JAMES M. PALMER, ofCambridge, in the county of Middlesex, State of Massachusetts, haveinvented a certain new and useful Improvement in Pocket Knives orKnife-Blades, of which the following is a description sufficiently full,clear, and exact to enable any person skilled in the art or science towhich my invention appertains to make and use the same, reference beinghad to the accompanying drawings, forming a part of this specification,in Which- Figure 1 is a side elevation, showing my improved .knife-blademounted in a handle 5 and Fig. 2, a view showing the ordinary transversetile-teeth which I sometimes use on the side of the blade opposite thelongitudinal file-teeth.

Like letters of reference indicate correspond` ing parts in thedifferent iigures of the drawings.

My invention relates to knives which are especially designed forcleaning and trimming finger-nails; and it consists in a linger-nailblade having file-teeth arranged in parallel lines extending in thedirection of the length of the blade, whereby the 'act of filing theiinger-nails can be performed with greater facility than with theordinary tile-blades wherein the iile-teeth are arranged laterallyacross the same. 1 v

Files of this description are employed principally in paring or trimmingthe nails, and when formed as shown'in Fig. 2 it is difficult to usethem with ease and convenience, as the blade of the knife has to be heldin a horizgontal position,vlpressed firmly against the extremity of thenail, and moved back and forth in contact therewith, the nger being leftunsupported during the operation.

In the use of my improvement, or of a knifeblade provided with alongitudinal le, the knife-handle is held in a vertical or nearlyupright position, the le on the blade being pressed against theextremity of the nail and moved with a reciprocating motion back andforth, while the finger being operatedon is sup ported or steadied bythe thumb of the operating-hand, or hand in which the knife is held,thus greatly facilitating the process.

I sometimes construct the blade with the longitudinal file C on one ofits sides, and the lateral file D on its opposite side, thus securingall the advantages pertaining to each form of construction in oneimplement.

In Fig. l the blade B is represented as being jointed in the usualmanner to the handle A; but it will be obvious that the blade may berigidly attached to the handle by a tang or otherwise without departingfrom the spirit of my invention.

Having thus described my invention, what I claim is- Iu a finger-nailknife-blade, the combination of a-shank, a cutting-blade end, and thelongitudinallyarranged ille ribs or teeth on the surface of theintermediate portion, substantially as described.

JAMES M. PALMER.

Witnesses:

C. A. SHAW, DENIsoN D. DIcKiNsoN.

